Parameter based definition of eccentric cycloid gearings

Abstract Current challenges for today’s industry are an increase in gear ratio one stage, load capacity as well efficiency compared to standard gears. The tooth profile cylindrical gears is involute. This has certain limits external gearings regarding its geometry, e.g., undercutting and a small radius of curvature near the base circle. Special overcome these offer enormous potential design through their adapted geometries. New manufacturing possibilities gears, such additive or 5‑axis milling, mean that special can also be produced economically. In comparison involute description non-involute often not standardized parameters describing geometry commonly defined. Thus, it possible adequately determine corresponding properties. One profiles eccentric cycloid gearing (EC gearing), which circular rolls with trochoid equidistant. flank provide advantages over applications. study introduces geometric EC gearing, based on defined set parameters. Besides geometrical parameters, characteristics proposed accordance parametric enables analytical determination flank, contact load-free characteristics. With shown variation it, suitable practical applications generated.